Why grouping of metals is neccessary?
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Oxygen is necessary for substances to burn. Oxygen is also important to most living things. reactive nonmetals because their atoms need to gain only one electron to have a complete outer level. ... Hydrogen is aboveGroup 1 because atoms of the alkali metalsalso have only one electron in their outer level.
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Oxygen is necessary for substances to burn. Oxygen is also important to most living things. reactive nonmetals because their atoms need to gain only one electron to have a complete outer level. ... Hydrogen is aboveGroup 1 because atoms of the alkali metalsalso have only one electron in their outer level.
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